How to change project visibility

Visibility of groups

Note:Starting with GitLab 8.6, the group visibility has changed and can be
configured the same way as projects. In previous versions, a group's page was
always visible to all users.

Like with projects, the visibility of a group can be set to dictate whether
anonymous users, all signed in users, or only explicit group members can view
it. The restriction for visibility levels on the application setting level also
applies to groups, so if that's set to internal, the explore page will be empty
for anonymous users. The group page now has a visibility level icon.

Visibility of users

The public page of a user, located at /username, is always visible whether
you are logged in or not.

When visiting the public page of a user, you can only see the projects which
you are privileged to.

If the public level is restricted, user profiles are only visible to logged in users.

Restricting the use of public or internal projects

In the Admin area under Settings (/admin/application_settings), you can
restrict the use of visibility levels for users when they create a project or a
snippet:

This is useful to prevent people exposing their repositories to public
by accident. The restricted visibility settings do not apply to admin users.